Pipe-coupling.



PATBNTED JAN. 6, 1903..

J. WILLMANN. PIPE COUPLING. APPLIGATIO HIILED MAR. 8, 1902.

N0 MODEL.

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UNITED STATES JOSEPH WILLMANN, on NEW BRAUNFELS, TEXAS.

PIPE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 717,647, dated January6, 1903.

Application fil d, March 8, 1902. $erial No. 97,345. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH WILLMANN, a citizen of the United States,residing at New Braunfels, in the county of Oomal andState of Texas,have invented a new and useful Pipe-Coupling, of which the following'isa specification.

This invention has for its object to produce a device whereby theabutting ends of two pipes may be coupled or connected without thenecessity of forming threads thereon; and the-invention consists in theimproved construction, arrangement, and combination of parts, to behereinafter more fully described, whereby the coupling or connecting ofpipes may be speedily and effectively performed.

In the accompanying drawings, Figure 1 is a side elevation showing twojoints of pipe connected by my improved coupling. Fig. 2 is a sectionalside elevation of the same. Fig. 3 is a transverse section taken on aplane intermediate the heads or disks of the coupling.

Corresponding parts in the several figures are indicated by likecharacters of reference.

5 and 6 designate the ends of two sections or joints of pipe connectedby my improved coupling. The latter comprises in its make up two disksor heads 7 and 8, having central apertures whereby they are fitted uponthe ends of the pipes to be connected and provided with additionalapertures to receive connecting-bolts 9 and 10, having nuts 9 and10*,whereby the said disks or heads may be forced in the direction ofeach other. Any

I desired number of connecting-bolts may be used; but only two have beenshown in the drawings, inasmuch as this number will be usually foundsulficient. Each of the disks is provided with radial recesses orcavities, as 4, extending outwardly from their inner peripheries, saidrecesses or cavities being practically nothing more than notches, all ofwhich are of substantially the same size-and shape, so that the disksmay be reversed or transposed without interfering with the utility ofthe device.

11 and 12 designate bars rectangular in cross-section, so as to fitinthe notches 4, and provided at one of their ends with wedgeshapedprojections, (designated 14 and 15.) It will be observed that theconstruction of' the nuts tightened thereon.

these elements, which may be described as wedge bars, is identical andthat they have been referred to by different numerals only in order todistinguish their relative disposition, as will be presently seen.

The disks which form the heads or ends of the coupling may be providedwith any desired number of notches 4. When the disks are to be used uponsmall pipes, four will usually be found sufficient. Upon larger pipessix, eight, or even a larger number may be used. It will be observed,however, that the number of notches should always be even in order toenable the wedge-bars to be properly disposed; also that the saidnotches will naturally be formed equidistantly from each other.

In the carrying out of my invention one of the disks is adjusted uponeach of the pipesections to be united near the end of the same, and thewedge-bars are then adjusted in the notches of said disks,with theirwedge-shaped ends alternately pointing in opposite directions. Thus whenthe Wedges are driven lightly home in the notches of the opposing disksthe parts of the device will be temporarily held upon the pipes whichare thus loosely connected. A washer 24 should be previouslyinsertedbetween the meeting ends of the pipes, as shown. The bolts connectingthe disks are now placed in position and The tendency will now be forthe disks to move in the direction of each other and to engage the.wedges of the reversely-disposed wedge-bars,

each disk thus obtaining throughthe medium of the engaging wedge-bars avery firm grip upon the adjacent pipe-section. When the disks areengaged by the wedges so solidly that each disk will be incapable offurther movement longitudinally upon the pipe-section upon which it ismounted, a continued tightening of the nuts will result in forcing theabutting ends of the pipe-section very tightly together and into contactwith the interposed packing, thus forming an absolutely tight and verydurable joint.

It will be observed that the wedge-bars, which are clamped by the disksupon each pipe-section, while incapable, as well as the engaging disk,of further longitudinal movement with relation to the pipe-section uponwhich they are clamped, are in no wise restrained from longitudinalmovement with relation to the opposing pipe-section,the plain portionsof said bars having a free sliding movement in the notches of the disks,whereby they are held in contact with the outer side of said opposingpipe-section. Hence a joint of any desired degree of tightness may beobtained.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States 1. In a pipe-coupling, thecombination of two disks and two sets of wedges clamped by said disksupon two opposing pipe-sections, those upon one section beingdisconnected from those upon the other pipe-section, and means forforcing said disks,wedges and pipesections toward each other.

2. Apipe-couplingcomprisingdisksloosely engaging opposing pipe ends,wedges engaging said disks and serving to clamp each disk upon itspipe-section independent of the other disk and pipe section, extensionsof the wedges upon each pipe-section having sliding engagement with theopposite pipe-section, and connecting means whereby the disks and thepipe -sections wedged therein may be forced in the direction of eachother, substantially as set forth.

3. Apipe-couplingcomprisingdisksloosely engaging opposing pipe ends,wedge-bars engaging said disks and serving to clamp each disk upon itspipe-section independent of the other disk and pipe-section, and meansfor forcing said disks and the pipe-sections connected therewith in thedirection of each other, substantially as set forth.

4. Apipe-coupling comprisingdisks mounted upon opposing pipe-sectionsand having notches therein, wedges engaging alternate notches in eachdisk and having extensions slidingly engaging alternate notches in thedisk upon the opposingpipe-section, and connecting means whereby thedisks and the pipe-sections wedged therein may be forced in thedirection of each other, substantially as set forth.

5. A pipe-coupling comprising a series of wedge-bars each having awedge-shaped projection on one end thereof, disks having centralapertures and notches in their inner peripheries, andconnecting-bolts,the said disks being mounted upon opposing pipe-sections, and the saidwedge-bars being alternately reversely disposed in the notches of thedisks, whereby, by tightening the bolts, the disks shall be clamped uponthe pipe-sections and the latter be forced in the direction of eachother, substantially as set forth.

6. A pipe-coupling comprising a pair of disks having openings to receivethe pipes, and radial notches, and bars engaging said notches of onedisk and having wedges engaging corresponding notches of the oppositedisk, and connecting means, substantially as set forth.

7. A pipe-coupling comprising a pair of disks having openings to receivethe pipes, and radial notches,bars engaging said notches of one disk andhaving alternately oppositely disposed wedges engaging correspondingnotches of the opposite disk, and connecting means, substantially as setforth.

8. A pipe-coupling comprising a pair of disks having openings to receivethe pipes, alternately oppositely disposedwedges engaging radial notchesin said disks and having longitudinal guide-bars extending throughnotches in the opposite disks, and connecting means whereby the saiddisks may be forced in the direction of each other, substantially as setforth.

9. The herein-described means for connecting the ends of pipes, the samecomprising a series of bars lying fiat against the adjacentpipe-sections and provided with wedges alternatelyat opposite ends,disksmounted loosely upon the adjacent pipe-sections and having radialnotches engaging the opposite ends of the said bars, each bar beingextended at its opposite ends through corresponding notches in saiddisks, and connecting means whereby the said disks may be forced inthe'direction of each other, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

JOSEPH WILLMANN.

Witnesses:

JOHN MARBACH, A. STRATEMANN.

